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TFS350A Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification
TFS350A.doc
VI TELEFILTER
Filter Specification
version 1.4
TFS 350A
12.05.04
1/5
Measurement condition
AInmpubtie0Pnot wTeermLpeevrealt:ure:
23
0
Term-1i0nating Impedance at fc*:
-20
.
-30
C
dBm
output:
input:
266 // -6,4 pF
0
246-1 // -6,4 pF
-2
-3
1.052
1.034
1.016
0.998
CBd ha-4r0acteristics
mRTiagnudentnii hseeemr---rt765aieo000rfnekr:leonscsealee.veTlhefornothmeinraellaftrievqeuaetntecynufaNtioisn
arel
fixed
of
at
TFS 350A is the
350 MHz without
Bd -4
maninymiudenagnmtiitoulemr---a576nocf eth. eThpeasgsivbeannvdalautetesnfuoartitohne
0.98 µs
0.962nyi
amin. This minimum is defi0n.e94d4dealas the
relative attenuation arel and0.9th2e6 group
delay ripple have to be reached
TCf i-n80the operating temperature
at the
range
frequencies given below, even if the
and due to a production tolerance for
ctehnetrcee-8nfrterequfreenqcuyefnccyis
shifted
fc.
due
to
the
temperature
coefficient
of frequency
0.908
-90
-9
0.89
D a-10t30a35 338 341 344 347 350 353 356 359 362 365
frequency in MHz
Insertion Loss
ae = amin
(Reference Level)
ty-p130.4V6 a3l4u6.e8 347.6 348.4 349.2 350 350.8 3L5i1m.6 i3t52.4 353.2 3504.872
frequency in MHz
22,2 dB
max. 25,0 dB
Nominal Frequency
fN
-
350,0 MHz
Pass Band
PB
Amplitude Ripple within PB
-
fN
3,5 MHz
-
max. 0,5 dB p-p
Return loss in PB
Group Delay Variation within PB
14 dB
25 ns
-
max. 30 ns
Relative Attenuation
fN
... fN ±
fN ± 7,7 MHz ... fN ±
fN ± 30 MHz ... fN ±
3,5
30
350
arel
MHz
MHz
MHz
0,4 dB
48 dB
60 dB
max.
min.
min.
0,7 dB
40 dB
50 dB
Operating Temperature Range
Storage Temperature Range
Turnover temperature To
Temperature Coefficient of frequency TCf**
-
-
20 °C
- 0,036 ppm / K2
-40...
-55... +85
-
-
+85° C
°C
*) The terminating impedances depend on parasitics and q-values of matching elements and the board used, and are to be understood as reference
values only. Should there be additional questions, do not hesitate to ask for an application note or contact our design team.
**) f(Hz) = TCf(ppm/K²) x (T-T0)² x fTo(MHz)
Generated:
Checked / Approved:
Filter characteristic
TELEFILTER GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
E-Mail: tft@telefilter.com
VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is
assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.